In this study, nano-sized cuprous oxide thin films were successfully synthesized by electrodeposition from a low-cost lactic acid -based aqueous solution. Cyclic voltammetry (CV) was used to investigate the deposition process and evaluate the effect of applied potential on the properties of the deposits. The XRD measurements indicated that the coatings structure was crystalline and contained the main diffraction peaks of Cu₂O [1] without need for additional heat treatment. The surface morphology investigation using field-emission scanning electron microscopy (FESEM) and atomic force microcopy (AFM) revealed that the Cu₂O thin films were around 6m thick and composed of Desert Rose-like clusters of nanosized grains. The optical properties measurements including absorption in UV-Vis spectrum range, Tauc and Mott-Schottky plots [2] showed that the as-synthesized products were p-type [3] and photoactive with a direct band gap of 2.1-2.4 eV, depending on the deposition potential.