Make a reaction equation: starch-glucose-ethanol-acetaldehyde-Ag Silver

Let us write down the equations for the transformation chain:
(C6H10O5) n + nH2O = nC6H12O6 – hydrolysis of the natural polymer of starch proceeds to the formation of glucose;
C6H12O6 = 2CO2 + 2C2H5OH – ethanol was formed;
Н3С – СН2 – ОН + CuO = H3C – CHO + Cu + H2O – acetaldehyde is released;
Н3С – СНО + Ag2O = CH3COOH + 2Ag – oxidation, silver is obtained.
The oxidation reaction of aldehyde is qualitative and allows you to detect
aldehyde. The practical significance of the reaction is the formation of a thin layer of silver on the glass surface.