Yes, as long as the previous finish is not lacquer or shellac. Be sure to test the selected colour on a hidden spot to see how it will look over the original finish. To prepare the surface, make sure that the finish is clean and has had all wax and polish removed. Then lightly sand with #180 or #220 sandpaper.
Then thaw meat, add seasoning and press into strips or sticks, and place on trays to dry. Depending on how thick meat is cut, how heavily dryer is loaded, and the humidity, jerky takes from 4 to 15 hours to dry.
1 Place your prepared meat directly on a wire rack, with a saucepan or catch underneath to catch the marinade dripping from the jerky.  Cook for 1 - 3 hours, depending on the cut of meat. Dehydration could take even longer, so be sure your meat is cooked through before taking from the oven.