The present disclosure describes a plate assembly for an electrical outlet. In some embodiments, the plate assembly includes a strapping plate that is attachable to the electrical outlet, and a cover plate sub-assembly that is selectively attachable to the strapping plate. In some embodiments, the cover plate sub-assembly includes a body portion that lies in a first plane, and a first retention member that is fixed to the body portion, and that lies in a second plane parallel to the first plane. The first retention member selectively engages the strapping plate to releasably secure the cover plate sub-assembly thereto. Embodiments of an electrical outlet assembly that implement the plate assembly are also described.