Preheat your oven to 425°F.
Pat the chicken breasts dry with paper towels to ensure crispy skin.
In a small bowl, mix together the olive oil, salt, black pepper, garlic powder, onion powder, thyme, and rosemary to create a marinade.
Rub the marinade all over the chicken breasts, making sure to get under the skin for maximum flavor.
Place the chicken breasts in a roasting pan, skin side up.
Arrange the lemon slices around the chicken in the roasting pan.
Roast the chicken in the preheated oven for 35-45 minutes, or until the internal temperature reaches 165°F and the skin is golden brown and crispy.
Remove the chicken from the oven and let it rest for 5-10 minutes before serving.
Garnish with fresh parsley if desired.