Copper sulfate solution is widely used in agriculture as a fungicide and pesticide. It helps control fungal diseases in crops, particularly in vineyards and orchards, and is a key component of the Bordeaux mixture, which protects plants from pathogens.

In aquaculture and water treatment, it serves as an algaecide to manage unwanted algae growth in reservoirs, ponds, and fish farms. Its ability to kill algae makes it useful in maintaining water quality, though care is taken to avoid toxic levels for aquatic life.

It is also employed in the electroplating industry to deposit copper coatings on metals, improving conductivity and corrosion resistance. In laboratories, copper sulfate solution is used in various chemical tests and educational experiments, such as crystal growth and electrochemistry demonstrations.

Additionally, it plays a role in mineral processing and metal recovery, where it aids in the extraction and purification of metals through precipitation and displacement reactions.