BRENTWOOD - ? Gov. Andrew Cuomo announced yesterday that 3,500 state workers could be laid off. The governor?s office says pink slips have started going out to members of the Public Employees Federation. Mental health workers and corrections employees are going to be the hardest hit. About 643 workers will be laid off from the Office of Mental Health alone. The department includes Pilgrim State Psychiatric Center in Brentwood. Other departments will also be affected.