Combine 10 cups tap water, 4.5 tbsp table salt, and 2 tbsp + 3/4 tsp dextrose in a pot.
Stir until salt and dextrose dissolve completely.
Submerge chicken in brine.
Refrigerate for 16-24 hours.
The next day, remove chicken from brine and rinse under cold water.
Pat chicken dry with paper towels and then proceed with the rest of your process.