Widely used in agriculture as a component of fungicides and pesticides, especially in the formulation of Bordeaux mixture to control fungal diseases in crops. It is also applied in the treatment of copper-deficient soils to support healthy plant growth. In industrial settings, it serves as an electrolyte in copper electroplating processes, enabling the deposition of copper onto metal surfaces for conductivity and corrosion resistance. Commonly used in educational laboratories for crystal growth experiments and as a reagent in various chemical tests due to its distinct blue color in solution. Employed in the preparation of other copper compounds and in analytical chemistry for qualitative and quantitative analysis, such as in Fehling’s solution to detect reducing sugars. Also utilized in the textile industry as a mordant in dyeing processes, helping fix dyes to fabrics. Additionally, it finds use in the preservation of wood and in some algaecides for controlling algae in water systems.