Superconducting thin films of Y-Ba-Cu-O have been synthesized on silver coated copper foils. Precursor films of Y-Ba-Cu were deposited potentiostatically, then heat treated in O2/air. Energy dispersive X-ray analysis and X-ray diffraction were conducted to characterize the thin film deposits. The onset critical temperature of the superconducting films was found to be around 75 to 91 K, depending upon the processing conditions. This paper describes the experimental procedures and results obtained from preliminary experiments.