After the substitution reaction between metal and acid, does the mass of the solution increase? Why

After the metal reacts with the acid or its solution, the mass of the solution increases, because the mass of 1molH2 is 2g. To generate 1molH2, the 1-valent metal Li required is 2×7=14g

Solution Add 12g; if it is a divalent metal, Be requires 9 g, and the solution mass increases by 7g; if it is a trivalent metal, Al requires 18 g, and the solution increases by 16g.

So other metals in the same main group as the above, Will cause the solution mass to increase more