How to user entity framewok in a service worker

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C#

I am trying to use a service worker with a EF using dbContext:

public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
       {
       }

       DbSet<SimulationParcelData> SimulationParcelData { get; set; }

       protected override void OnModelCreating(ModelBuilder modelBuilder)
       {
           modelBuilder.Entity<SimulationParcelData>().ToTable("SimulationParcels");
       }

But i can not find the way to use inyection in the worker.cs file

This is the code in programs.cs

.ConfigureServices((hostContext, services) =>
              {
                  //var optionsBuilder = new DbContextOptionsBuilder<ApplicationDbContext>();
                  //optionsBuilder.UseSqlServer("Server=.\\SQLEXPRESS;Database=xxx;Trusted_Connection=True;");//,
                  //services.AddScoped<ApplicationDbContext>(s => new ApplicationDbContext(optionsBuilder.Options));

                  services.AddDbContext<ApplicationDbContext>(options =>
                  {
                      options.UseSqlServer(
                          hostContext.Configuration["ConnectionStrings:Connection"],
                          serverDbContextOptionsBuilder =>
                          {
                              var minutes = (int)TimeSpan.FromMinutes(3).TotalSeconds;
                              serverDbContextOptionsBuilder.CommandTimeout(minutes);
                              serverDbContextOptionsBuilder.EnableRetryOnFailure();
                          });
                  });
                  services.AddScoped<ApplicationDbContext>();
                  services.AddHostedService<Worker>();

              });

I am sure i am doing something wrong, but i do not know.
Any helps?

What I have tried:

I have tried serveral way to use EI in a Service work, but everything wrong
I am using C#