The "Jacking Instructions" sticker should show you. Assuming this is a hardtop (I'm not sure on convertibles), the jack & lever are secured by a bolt-on plate under the spare wheel/tire, with a threaded rod through the wheel center, with the jack base above the wheel, and the wingnut securing it all.
If you don't want the jack & handle scratching paint you'll probably need to put something between them and the trunk floor; same might apply to base & wheel.