According to our current understanding of physics, it is not possible for an object with mass to be moved at the speed of light. In Einstein's theory of relativity, as an object with mass accelerates, its energy increases, and as it approaches the speed of light, its energy approaches infinity. Therefore, it would require an infinite amount of energy to accelerate an object with mass to the speed of light.
Moreover, as an object with mass approaches the speed of light, its relativistic mass also increases, which means it would become more difficult to accelerate further. As an object with mass approaches the speed of light, its mass would become infinitely large, making it impossible to reach or exceed the speed of light.
However, it is important to note that massless particles, such as photons (particles of light), always move at the speed of light in a vacuum. Photons have energy but no rest mass, and they travel at the speed of light in vacuum by nature.
So, in summary, objects with mass cannot reach or exceed the speed of light, and there is no maximum possible mass that can be moved at the speed of light. The speed of light is considered the cosmic speed limit for objects with mass.