Does power of attorney work after death, and if so, how does it function in managing the affairs of the deceased individual?

No, a power of attorney does not work after the death of the individual. Once a person passes away, the power of attorney is no longer valid, and the authority granted to the agent ends. Instead, the management of the deceased individual's affairs typically falls under the control of the executor or administrator of their estate, as outlined in their will or determined by the court.