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Copper metal can be dissolved for electroplating using an acidic solution, such as nitric acid (HNO3). However, this process is highly exothermic and releases toxic fumes. It is crucial to perform this reaction in a well-ventilated area and wear appropriate safety gear, including gloves, goggles, and a respirator. A safer alternative is using a solution of ammonium hydroxide (NH4OH) and hydrogen peroxide (H2O2), which produces copper(II) ions without releasing harmful fumes. Remember, always prioritize safety and health when working with chemicals.