First, we need to understand what the weight is. Mathematically, the weight is given by:
[tex]\begin{gathered} W=m\cdot g-Fb \\ where: \\ m=mass \\ g=gravity \\ Fb=Force_{\text{ }}of_{\text{ }}bouyancy \end{gathered}[/tex]In vacuum, there is no force of buoyancy, so in the vacuum the weight reaches its maximum value.
In this sense, the statement is absurd, so we can conclude it is False
