In a large bowl, combine the chicken breasts and dill pickle juice. Ensure the chicken is fully submerged in the juice, allowing it to marinate in the refrigerator for at least 30 minutes.
Set up a three-bowl breading station for efficiency. In the first bowl, place the flour seasoned with salt, pepper, and garlic powder; in the second bowl, whisk together the eggs; in the third bowl, mix breadcrumbs with grated Parmesan cheese.
In a large skillet, heat enough cooking oil over medium heat to cover the bottom of the pan. Monitor the temperature; you should see sizzle when you drop in a breadcrumb.
Remove each chicken breast from the marinade, shaking off any excess juice. Dredge it in seasoned flour first, dip it into the egg mixture next, and finally coat it with the breadcrumb-Parmesan mixture.
Carefully place breaded chicken breasts into hot oil and fry them for about 5-7 minutes per side or until golden brown and cooked through (internal temperature of 165°F or 75°C). Avoid overcrowding to ensure even cooking.