In a large bowl, mix lemon juice, lemon zest, oregano, salt, pepper, garlic and olive oil; add chicken and potatoes and toss until coated with mixture.
Transfer everything to a sheet pan with a rim. Add chicken broth, cover with aluminum foil and bake for 20 minutes in 375 F (175 C) oven.
Uncover and continue baking at 390 F (200 C) for 25-35 minutes or until chicken and potatoes are done.
Optional: put under broiler for 3-5 minutes or until golden.