Widely used in agriculture as a fungicide and pesticide, especially in vineyards and orchards. It is a key component of Bordeaux mixture, which controls fungal diseases on crops. In aquaculture, it treats parasitic infections and algae in fish ponds. Commonly used in industrial settings for electroplating and metal finishing to produce uniform copper coatings. Employed in mining as a froth flotation agent to separate copper ores. Used in educational labs to grow crystals and demonstrate chemical reactions. Also applied in the leather tanning industry and in the preparation of other copper compounds.