What is the purpose of a tandem GFCI breaker and how does it differ from a standard GFCI breaker in terms of electrical protection?

A tandem GFCI breaker is designed to provide ground fault protection for multiple circuits in a panel. It differs from a standard GFCI breaker by being able to protect two separate circuits instead of just one. This allows for more efficient use of space in the panel while still providing the same level of electrical protection.