Place lemon juice, zest, crushed garlic, thyme leaves, and parsley in a zip lock bag; mix until well combined.
Add the chicken thighs to the marinade. Rotate the bag so that all chicken pieces are coated evenly with the marinade. Seal the bag and place it in the refrigerator to marinate for 2 hours.
Remove the chicken 20 minutes before baking to come to room temperature.
Preheat the oven to 425 degrees. Coat a large baking dish or baking sheet with olive oil cooking spray.
Remove the chicken from the bag and place it on a plate. Season both sides of the chicken evenly & well with sea salt and freshly cracked pepper.
Place the chicken in the prepared baking dish, then drizzle a touch of olive oil on each thigh, if desired.
Place into the oven and bake for 40-45 minutes, or until the juices run clear. Halfway through baking (around 20 minutes), baste with the remaining marinade.
Remove from the oven and let it rest for 5 minutes before serving. Enjoy.