Preheat the oven to 400°F (200°C).
In a mixing bowl, combine the olive oil, salt, black pepper, garlic powder, onion powder, dried thyme, dried rosemary, and lemon juice. Stir well to create a marinade.
Pat the chicken breasts dry using a paper towel. Place them in the baking dish or on the sheet pan.
Pour the marinade over the chicken breasts, ensuring they are evenly coated. You may use your hands to rub the marinade into the meat for better flavor.
Arrange the chicken breasts in a single layer in the baking dish. Optionally, garnish with fresh parsley for added color.
Bake in the preheated oven for 25-30 minutes, or until the internal temperature reaches 165°F (75°C) as measured with a meat thermometer.
Remove from the oven and let the chicken rest for 5 minutes before slicing. This allows the juices to redistribute, keeping the meat moist.
Serve hot with your choice of sides.