Used as a fungicide in agriculture to control fungal diseases in crops, especially in vineyards and potato fields. Commonly applied in the form of Bordeaux mixture, which protects plants from mildew and other fungal infections. Employed in industrial settings for electroplating processes, where it serves as a source of copper ions to coat conductive surfaces with a thin layer of copper for improved conductivity and corrosion resistance. Utilized in water treatment to control algae growth in reservoirs, ponds, and swimming pools due to its algaecidal properties. Applied in the mining industry for froth flotation processes to separate copper and other sulfide ores from gangue materials. Used in educational and research laboratories as a reagent in various chemical tests and demonstrations, including crystal growth experiments and electrochemical studies. Administered in veterinary medicine in limited concentrations to treat copper deficiency in livestock and as a mild antiseptic.