\documentclass[12pt,twoside]{article}  
\usepackage{colortbl}
\usepackage[cp1251]{inputenc}
\usepackage[english,russian]{babel}
\usepackage[T2A]{fontenc}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%   Введение сокращенных обозначений для некоторых команд.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\cc}{\centering}
\newcommand{\gr}{\cellcolor[gray]{.7}}
\newcommand{\y}{\rule[-2mm]{0mm}{6.5mm}}

\begin{document}

\begin{center}
\begin{tabular}{|p{35mm}|p{50mm}|p{50mm}|}
\hline
\cc              & \cc         & \cc     \y  
\tabularnewline                
\hline
\cc              & \cc \gr     & \cc     \y  
\tabularnewline
\hline
\cc              & \cc         & \cc     \y 
\tabularnewline
\hline
\cc              & \cc         & \cc     \y 
\tabularnewline
\hline
\cc              & \cc \gr     & \cc \gr \y
\tabularnewline
\hline
\cc              & \cc \gr     & \cc \gr \y 
\tabularnewline
\hline
\cc              & \cc         & \cc     \y
\tabularnewline
\hline
\end{tabular}
\end{center}

\end{document}