In a large saucepan, add the water, 1/2 cup of the salt, the sugar, the peppercorns, and the orange zest.
Place the saucepan over medium-high heat and bring the brine mixture to a boil.
Boil the brine mixture until the salt and the sugar have dissolved, about 3-5 minutes.
Transfer the saucepan from the heat and let the brine mixture cool completely.
Transfer the brine to a large, deep bowl.
Add the pork chops to the cooled brine, making sure they are covered.
Place the bowl in the refrigerator and let the chops marinate for 1 hour.
Preheat the oven to 350 degrees F.
Fit a rimmed baking sheet with a rack.
Transfer the pork chops from the brine, then rinse and pat them dry.
Season the pork chops with the extra salt and the extra ground black pepper.
In a shallow dish, add the panko, 2 teaspoons of the thyme, the remaining 2 teaspoons of the salt, and 1/2 teaspoon of the remaining ground black pepper.
In a second shallow dish, add the flour.
In a third shallow dish, add the beaten eggs.
Carefully dredge the pork chops in the flour, shaking off any excess.
Dip each pork chop in the eggs to fully coat them.
Dredge each coated pork chop in the panko mixture to coat, shaking off any excess.
In a large skillet over medium heat, add the oil.
Add the pork chops to the skillet and cook, turning once, until golden-brown, about 3-5 minutes per side.
Transfer the pork chops to the prepared baking sheet.
Roast the pork until it reaches an internal temperature of 145 degrees F, about 5-7 minutes.
Serve immediately garnished with the extra thyme.